Nodejs Array Take take(howMany, f)

Method Source Code

Array.prototype.take = function(howMany, f){
   var counter = 0;
   var i = 0;//www  .ja v a 2 s . c  om
   var addIt = false;
   var newArray = [];

   while(counter < howMany && i < this.length){

       if(f == undefined){
           addIt = true;
       }else{
           if(f(this[i]) == true){
               addIt = true;
           }
       }
       if(addIt){
           newArray.push(this[i]);
           counter++;
           addIt = false;
       }
       i++;
   }

   return newArray;
};

Related

1. take(c)

   Array.prototype.take = function (c) {
     return this.slice(0, c);
   };
   

2. take(count)

   Array.prototype.take = function (count) {
       var result = new Array();
       for (var i = 0; i < count && i < this.length; i++)
           result.push(this[i]);
       return result;
   };
   

3. take(elements)

   Array.prototype.take = function(elements) {
       if (elements > this.length) {
           return [];
       } else {
           return this.slice(0, elements)
   

4. take(length)

   Array.prototype.take = function (length) {
     var result = new Array();
     length = Math.min(this.length, length);
     for (var i = 0; i < length; i++)
       result.push(this[i]);
     return result;
   };
   

5. take(n)

   Array.prototype.take = function (n) {
     return this.splice(0, n);
   };
   

6. take(x)

   Array.prototype.take = function(x){
     return this.slice(0,x)
   

7. takeSample()

   Array.prototype.takeSample = function () {
       var n = Math.round((Math.random() * (this.length - 1)));
       return this[n];
   };